1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifndef _UID_INFO_H_ 17 #define _UID_INFO_H_ 18 19 #include <string> 20 #include <unordered_map> 21 22 #include <binder/Parcelable.h> 23 24 namespace android { 25 namespace os { 26 namespace storaged { 27 28 enum uid_stat_t { 29 FOREGROUND = 0, 30 BACKGROUND = 1, 31 UID_STATS = 2 32 }; 33 34 enum charger_stat_t { 35 CHARGER_OFF = 0, 36 CHARGER_ON = 1, 37 CHARGER_STATS = 2 38 }; 39 40 enum io_type_t { 41 READ = 0, 42 WRITE = 1, 43 IO_TYPES = 2 44 }; 45 46 struct io_stats { 47 uint64_t rchar; // characters read 48 uint64_t wchar; // characters written 49 uint64_t read_bytes; // bytes read (from storage layer) 50 uint64_t write_bytes; // bytes written (to storage layer) 51 uint64_t fsync; // number of fsync syscalls 52 }; 53 54 class task_info { 55 public: 56 std::string comm; 57 pid_t pid; 58 io_stats io[UID_STATS]; 59 bool parse_task_io_stats(std::string&& s); 60 }; 61 62 class UidInfo : public Parcelable { 63 public: 64 uint32_t uid; // user id 65 std::string name; // package name 66 io_stats io[UID_STATS]; // [0]:foreground [1]:background 67 std::unordered_map<uint32_t, task_info> tasks; // mapped from pid 68 69 status_t writeToParcel(Parcel* parcel) const override; 70 status_t readFromParcel(const Parcel* parcel) override; 71 }; 72 73 } // namespace storaged 74 } // namespace os 75 } // namespace android 76 77 #endif /* _UID_INFO_H_ */